Update karma launchers

Author: astralarya

package.json

@@ -34,14 +34,15 @@
     "github": "^2.4.0",
     "istanbul-instrumenter-loader": "^0.2.0",
     "karma": "^1.1.2",
-    "karma-chrome-launcher": "^1.0.1",
+    "karma-chrome-launcher": "^2.0.0",
     "karma-coverage": "^1.1.1",
     "karma-coveralls": "^1.1.2",
     "karma-detect-browsers": "^2.1.0",
     "karma-firefox-launcher": "^1.0.0",
     "karma-ie-launcher": "^1.0.0",
     "karma-mocha": "^1.1.1",
     "karma-mocha-reporter": "^2.1.0",
+    "karma-opera-launcher": "^1.0.0",
     "karma-phantomjs-launcher": "^1.0.1",
     "karma-safari-launcher": "^1.0.0",
     "karma-sourcemap-loader": "^0.3.7",